The correct answer is A. Think of the rings of a tree trunk: Each planet travels around its own ring, carving out its own path in the solar system.
Explanation:
In writing, making a comparison involves mentioning or describing an element with similar characteristics to better explain an idea. This occurs in the case of "Think of the rings of a tree trunk. Each planet travels around its own ring, carving out its own path in the solar system" because the arrangement of the rings in a trunk is similar to the arrangement of orbital planets, which is the main idea the author tries to describe. Also, the idea planet carves out a specific path in the Solar system follows a ring-like structure help readers understand the movement of planets described in the explanation. Thus, it is in this option there is a comparison to clarify.
In A.E. Housman's poem "To an Athlete Dying Young," the poet uses the metaphor of the runner, an athlete, to represent all those who have died young while still in their prime and glory.
